Hi all , newby to the forum . I am thinking of getting a 2500 sv v8. Ive seen one around and its riding real low on the back side . Didnt know if i should go for the 3500? Im an electrician and like to carry alot of equipment/parts/tool + ladder rack w/ 2-3 ladders and pipe rack. I also noticed in the specs the hi-roof is only rated at 300 lbs . I want to be able to carry about 1800-2000lbs comfortably. Anyone have any thoughts or experiences?